发明名称 Controlling With Rights Objects Delivery Of Broadcast Encryption Content For A Network Cluster From A Content Server Outside The Cluster
摘要 Methods, systems, and products are disclosed for controlling with rights objects delivery of broadcast encryption content for a network cluster from a content server outside the cluster that include receiving in the content server from a network device a key management block for the cluster, a unique data token for the cluster, and an encrypted cluster id; calculating a binding key for the cluster in dependence upon the key management block for the cluster, the unique data token for the cluster, and the encrypted cluster id; inserting a title key into a rights object defining rights for the broadcast encryption content; and sending the rights object to the cluster. In typical embodiments, the rights for content include an authorization for a play period and an authorized number of copies of the broadcast encryption content to devices outside the cluster.
申请公布号 US2009016533(A1) 申请公布日期 2009.01.15
申请号 US20080058678 申请日期 2008.03.29
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 JUNG EUNJIN;SHAHEEN AMAL AHMED
分类号 H04L9/00;G06F21/00 主分类号 H04L9/00
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